Scaffold support



Jan. 18, 1927. SCOTT SCAFFOLD SUPPORT Filed Nov. 19 2 Sheets-Sheet l T. sco'rT SCAFFOLD SUPPORT 2 Sheets-Sheet Filed Nov. 19, -1925 gwue'ntm 56035 minus Patented Jan. 18, 1927.

warren STATES THOMAS SCOTT, OF

CLEVELAND, .OHIO.

SCAFFOLD SUPPORT.

Application filed November The present invention relates to an adjustable trestle or supporting frame for scaffold platforms of that general type which are extensively used by plasterers, painters or other workmen when doing overhead work.

Among the objects of the invention are to provide an adjustable scaffold support which is simple and inexpensive in its construction, which can be readily adjusted for supporting the platform at different elevations, which can be readily taken apart and packed in a small amount of space when not in use, and which provides a strong and rigid support for the platform.

While one particular embodiment of the invention is shown and described in this application for illustrative purposes, it will be understood that many modifications and changes can be made in the details of construction without departing from the spirit of the invention.

For a full understanding of the invention reference is to be had to the following description and accompanying drawings, in which Figure 1 is a side elevation of a scafiold support which is constructed in accordance with the invention, showing a long cross bar which is supported at its middle portion as well as at its ends, the cross-bar being shown in one position by full lines and. in another position by dotted lines.

Figure 2 is an elevation of one of the end standards.

Figure 3 is a similar view of the intermediate standard.

Figure 4: is an enlarged perspective view of the long cross-bar which is intended to be engaged at its middle portion by the intermediate standard, portions being broken away.

Figure 5 is an enlarged perspective view of a cross bar which is supported only at its ends and is used without the intermediate standard, the diagonal braces being shown as swung upwardly against the cross-bar.

Figure 6 is an enlarged side elevation of a portion of the upper end of one of the end standards, showing the slots which are provided for engagement with the ends of the cross-bar.

Figure 7 is a sectional view on the line T-7 of Figure 6, looking in the direction of the arrows.

Figure 8 is an enlarged sectional view 19, 1925. Serial No. 70,150.

through a portion of the intermediate standard, showing one of the inverted L- shaped notches which is provided for engagement with the middle portion of the long cross-bar when the latter is used, the cross-bar being shown by full lines in nor mal position and by dotted lines in the tilted position assumed when placing it in engagement with the notch or removing it therefrom, said view being taken on the line 88 of Figure 10.

Figure 9 is a sectional view on the line 9-9 of Figure 8, looking in the direction of the arrows.

Figure 10 is a similar View taken on the line 10-10 of Figure 8.

Corresponding and like parts are referred to in the following description and indicated on all of the views of the drawings by like reference characters.

Referring to the drawings, the numeral 1 designates a cross-bar which may be formed of angle iron and upon which the platform boards of the scaffold rest, and cross-bar being supported by end standards A and an intermediate standard B. Each of the end standards comprises an upright member 2 which is shown as formed of angle iron, the lower end of the standard being provided with a transverse bar 3. The ends of the transverse bar are connected to the standard by diagonal braces 4, said braces being preferably formed of bar iron and the lower 7 ends thereof being returned under the trans verse bar 3 and projecting laterally beyond the same to provide the feet 4. Similarly, the lower end of the angle iron upright 2 has one of the flanges thereof cut away, while the other flange is returned under the bar 3 and permitted to project laterally beyond the same to' form an intermediate foot 2 which is preferably slightly longer than the feet P. The uprights are thus provided with base portions adapted to obtain a bearing upon the floor or other support to hold the uprights in a substantially vertical position. One of the flanges of each of the angle iron uprights 2 is formed with a series of slots 5 and these slots are adapted to receive tongues 6 which are provided at the ends of the cross bar 1 by cutting away. the hori- Zontal flange thereof. These tongues 6 are perforated to receive locking members such as the pins 7 which may be inserted in pesi tine Mama ends of the hair in lit gagenicnt with the standards after the parts have been assembled. The cross-bar is pro vided with diagonal brace members 8 which are pivotally connected thereto at 9. The free ends of the diagonal braces are formed with openings adapted to receive fastening members such as the pins 10, which also pass through corresponding openings 11 in the uprights 2,

Qisprovided with the slots while the other flange is provided with openings 11 which are correspondingly arrangcth E'Otlltlt the diagonal braces canbcproperly connected to the standards when the tongues (i at the ends of the cross-bar are seated in any selected set of the slots 5. The said tongues (i are preferably formed at the lower edges thereof with notches 6, which are adapted to inter lock with the lower ends of the slots when the cross-bar is in place.

The intermediate standard B is formed with an angle iron upright 12 having inverted L-shaped notches 13 in one of the flanges thereof, one of these notches being provided for each of the slots -111 the end standards A, and the middle portion of the cross-bar being a'dapted'to be fitted in one oit'these notches when the parts are properly assembled. The vertical flange of the crossbar 1 is provided attheiniddle portion thereof with a notch 14; which is'adapted to interlock with the lower end of one of the L- sh-aped notches 1 3 of theintermediate standard when the parts are in proper engagement with each other. As indicated by dottedlines on Figure 8, the cross-bar can he turned somewhat about itslongitudinala x'is when placing-it in engagement with one ofthe inverted L-shaped notches 13'01 disengaging it therefrom.

The lower end of the upri 'ht'12 of the intermediate standard 13' has a base portion comprising a transverse bar 15 anddiagonal braces 16. The lower ends ofthe diagonalbraces' being extended laterally under the ends of the transverse bar and secured thereto, while the lower end of the upright 12 has one of the flanges thereof cut away, the other flange being bent at rightangle's and. secured to the tranireise bar 15, as indicated at 1?. The upright is thus inorided with'a flared base portion which is adapted to en gage the floor or other surface and cooperate therewith to hold the upright in a substantially vertical position.

For a narrower platform a shortcross-bar 1, such as that shown by Figure 5, may be used instead of the long cross-bar l which is shown by Figures 1 and 4. The short crossbar 1" is provided with tongues O and pivoted brace members 8 which are adapted to engage the and standards A-justasprevious- 1y described. lVith this short cross-bar 1 it is not necessary to use the intermediate stand- It will be observed that one of J the flanges 0t each of the angle iron uprights ard B, although the cross-bar can be adjusted to support the platform at a higher or lower elevation as may be desired, and when the brace members 8 are secured to the standards a strong and rigid support is provided.

The scaltold support can be readily "formed of light structural iron material and providesa rigid structure when it is assen'ibled, so that there is no danger of an accidental collapse of the scattold after it has been erected. Furthcrn'iorc the device provides anadjustable support which can be assembled in adjusted positions to support the platform at a higher or lower elcvation and either the long cross bar t or the short crossbar can be ired, depending upon whether a wide plattornt or a narrow platform is to he supported.

l'I'aVillQ' thus d'escrihedmy invention'what 1 claim as no" and desire to secure by Letters Patent is 1. A seaflold support including angleiron uprights, each of which lias-ase1*ie -ot slots in one flange thcreot and a series of openings in the other flange thereoli, an angle iron cross bar having one of the flanges thereof cut away at its ends, the other flangeextendingv beyond the cut away flange toform tongues adapted-to extend through selected slots in the u1' rights, diagonalbraces'pivotally connected to the cross bar, and fastening members ai'lapted to engage selected openir z's ot the uprights for detachably securing the braces to the uprights.

2.,31 scatt'old support including angle iron uprights-,- each of which has a series 01" slots in one flange thereof, an angle iron crossbar having one of the flanges thereof cut away at the ends-of the ar and-the other flange projecting be cond the said cut away portions to form tongues'which have openings therein andare adapted to c'iigage selected slots of the uprights, and pins adapted to be inserted through the openings t the tongues to lock the tongues in position with the out off ends otthe flange ofthe cross bar in'engagcment with the uprights.

3. A scai'fohil support including end standards; cachet which is-toriued with a series of slots. a cross-bar provided at the ends'thercof with means for engaging selected slots of the endstandards, and aniiitermediate standard formed with a flange having notches opening' laterally through an edge portion thereot and adapted to'engage the cross bar at any adjusted position thereof.

4. A=' sca-flold support including end standards, an angle iron cross bar,n'1cans "tor sccuring the ends ot the cross-bar to the end standards at different elevations. and an intermediate standard formed with a flange hating notches therein adapted to receive one of the flanges of the angle iron cross bar at the different adjusted positions thereot.

5. A scaffold support including end standards, an angle iron cross bar, means for detachably securing the cross-bar to the end standards at different elevations, and an intermediate standard formed with a flange having inverted L-shaped notches therein adapted to receive the cross bar at different elevations thereof, the cross-bar being notched so as to have an interlocking engagement with the notches of the intermediate standard.

(3. A standard of. the character described, including an upright member, a transverse bar at the lower end thereof, and diagonal braces between the standard and the ends of the transverse bar. the lower ends of the dia gonal braces being bent laterally and projecting beyond the transverse bar at substantially right angles thereto to provide lat eral feet.

7. A standard of the character described, including an angle iron upright, a transverse bar extendingacross the lower end of the upright, the lower end of the uprighthaving one of the flanges cut away and resting on the transverse bar, while the other flange is extended laterally under the cross bar and caused to project beyond the same to form a foot, and diagonal braces between the upright and the ends of the transverse bar, the lower ends of the braces being extended laterally under the transverse bar and caused to project beyond the same to provide additional lateral feet.

In testimony whereof I afiix my signature.

THOMAS SCOTT. 

